Latest FC kernel still have SMP bugs?

[Nigel Wade]

WipeOut wrote:
> Nigel Wade wrote:
> 
>> Nigel Wade wrote:
>>
>>>
>>> My system crashed at 23:35. The cron job to mount/unmount filesystems 
>>> was set to run at :10 and :35 every hour. Given what other people 
>>> report in this and other threads I'd say either mount or unmount was 
>>> the culprit.
>>>
>>> I think I'll be building my own kernel now.
>>>
>>
>> I built the latest 2.4 kernel, but LDAP won't run with that kernel 
>> (more precicely, the BDB backend won't start and slapd seg. faults). 
>> So that's a non-starter.
>>
>> I guess I'm back to square one. The system won't operate in SMP with 
>> the FC kernel and won't operate at all without a FC kernel. So it 
>> looks like Fedora is snafu'd.
>>
>> Unfortunately, RH9/RHEL3 don't have the version of LDAP I require, and 
>> when I tried an upgrade to openldap I started getting FUTEX locking 
>> problems.
>>
> This may be a stupid question since it sounds like you know what you are 
> doing but I thought I would ask anyway..
> 
> Did you use the FC .config when recompiling the kernel? don't know if it 
> will make any difference but it may do..
> 
> Later..
> 
> 

Yes, I used kernel-2.4.22-i686-smp.config. Running 'make oldconfig' asked a 
few questions about new features to which I answered N.

I presume that BDB is built using NPTL, and the stock kernel doesn't have 
NPTL support (AFAIK, that is backported into RH9/RHEL3/FC1 from the 2.6 
kernel). But this is conjecture, I really don't know enough about it.

Attempting to start slapd with LD_ASSUME_KERNEL=2.4.1 doesn't help.

-- 
Nigel Wade, System Administrator, Space Plasma Physics Group,
             University of Leicester, Leicester, LE1 7RH, UK
E-mail :    nmw at ion.le.ac.uk
Phone :     +44 (0)116 2523548, Fax : +44 (0)116 2523555